Hebei dragon Asahi specializing in the production of basic metal winding gasket, with the inner metal winding gasket, gasket, graphite gasket, PTFE gasket, metal gasket, metal holding tooth cover gasket, asbestos rubber gasket, rubber gasket, octagon gasket, oval gasket, copper gasket, metal flat gasket, graphite packing ring, packing, PTFE packing, aramid packing, high water-based packing, high elastic fiber packing, ramie packing with outer ring metal winding, welcome new and old customers call Advisory